import { Observable } from 'rxjs';
import { Context } from '../../context/Context';
import { ReaderSettingsManager } from '../../settings/ReaderSettingsManager';
import { InternalNavigationEntry, InternalNavigationInput } from '../types';
type Navigation = {
    navigation: InternalNavigationInput;
    previousNavigation: InternalNavigationEntry;
};
export declare const getOrGuessDirection: ({ navigation, previousNavigation, settings, }: {
    previousNavigation: InternalNavigationEntry;
    navigation: InternalNavigationInput;
    context: Context;
    settings: ReaderSettingsManager;
}) => InternalNavigationEntry["directionFromLastNavigation"];
export declare const withDirection: ({ context, settings, }: {
    context: Context;
    settings: ReaderSettingsManager;
}) => (stream: Observable<Navigation>) => Observable<Navigation & {
    direction: InternalNavigationEntry["directionFromLastNavigation"];
}>;
export {};